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Finding the Fourth Proportional to 331,364.88, 457,296.48 and 188,138.25

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Solution

The fourth proportional to 331,364.88, 457,296.48 and 188,138.25 is: 259,638.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,364.88 : 457,296.48 = 188,138.25 : x
  2. Step 2: Convert to fraction form
    331,364.88/457,296.48 = 188,138.25/x
  3. Step 3: Cross multiply
    331,364.88x = 457,296.48 × 188,138.25
  4. Step 4: Simplify right side
    331,364.88x = 86,034,959,478.36
  5. Step 5: Solve for x
    x = 86,034,959,478.36/331,364.88
  6. Step 6: Final answer
    x = 259,638.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.